Bolka Corporation, a merchandising company, reported the following results for October: Sales Cost of goods sold (all variable) Total variable selling expense Total fixed selling expense Total variable administrative expense Total fixed administrative expense The gross margin for October is: $ 431,000 $ 176,400 $ 24,900 $ 18,700 $ 13,100 $ 34,900 Multiple Choice $216,600 $254,600 $163,000 $377,400